Former Starbucks CEO Howard Schultz rejected Democratic complaints that his Independent 2020 campaign will guarantee President Trump’s re-election, and said Democrats themselves will guarantee a Trump victory by nominating a “radical left” nominee.

“The stakes are too high to cross our fingers and hope the Democratic Party nominates a moderate who can win over enough independents and disaffected Republicans, and even fellow Democrats, to defeat Trump next year,” Schultz wrote in a blog post Monday. “That any opponent can oust Trump, no matter how far to the radical left they are, is a fallacy.”

“Those so concerned about a centrist independent being a spoiler should perhaps ask another question: Will the eventual Democratic nominee be the party’s own version of a spoiler?” Schultz wrote in a blog post Monday.Subscribe to our new print magazine for more politics, deeper culture, better accessWatch Full Screen to Skip Ads

Schultz has been criticized since he announced last month that he was considering running as a third-party candidate. The billionaire reiterated that he won’t run if he sees himself as a spoiler, but said he sees a potential path to the White House for a centrist independent.